[SPDK] Re: After spdk_bdev_reset() call, IO operations a still permitted on the same channel

> -----Original Message-----
> From: ssunder(a)xilinx.com <ssunder(a)xilinx.com>
> Sent: Thursday, October 29, 2020 12:05 AM
> To: spdk(a)lists.01.org
> Subject: [SPDK] After spdk_bdev_reset() call, IO operations a still permitted on
> the same channel
> 
> I have performed some experiments to understand the behavior of IO
> operations after spdk_bdev_reset(). I used hello_bdev example for this purpose
> and  I concluded the bdev reset has no impact on IO operation issued on the
> same channel. I thought once the reset is issued, the bdev layer should reject all
> new bdev read/write requests including inflight requests but it is not happening.
> 
> Can someone explain what is the expectation from spdk_bdev_reset() and how
> it supposed to work ?

The I/O gets aborted from the physical hardware, but SPDK automatically resubmits it once the reset is complete.

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